const BaseFinancialRepository = require('./BaseFinancialRepository');

/**
 * Balance History Repository
 * 
 * Manages audit trail for balance changes.
 */
class BalanceHistoryRepository extends BaseFinancialRepository {
  constructor() {
    super('pg_fn_balance_history');
  }

  async findByUnitId(unitId, siteId) {
    return await this.findAll({ unit_id: unitId, site_id: siteId }, {
      orderBy: 'created_at',
      orderDirection: 'desc'
    });
  }

  async createHistoryEntry(entryData) {
    return await this.create({
      ...entryData,
      created_at: new Date().toISOString()
    });
  }
}

module.exports = BalanceHistoryRepository;